- stage.content.visit(*this);
- NodeRemover().apply(stage, nodes_to_remove);
-}
-
-void DeclarationCombiner::visit(Block &block)
-{
- if(current_block)
- return;
-
- TraversingVisitor::visit(block);
-}
-
-void DeclarationCombiner::visit(VariableDeclaration &var)
-{
- VariableDeclaration *&ptr = variables[var.name];
- if(ptr)
- {
- ptr->type = var.type;
- if(var.init_expression)
- ptr->init_expression = var.init_expression;
- if(var.layout)
- {
- if(ptr->layout)
- {
- for(vector<Layout::Qualifier>::iterator i=var.layout->qualifiers.begin(); i!=var.layout->qualifiers.end(); ++i)
- {
- bool found = false;
- for(vector<Layout::Qualifier>::iterator j=ptr->layout->qualifiers.begin(); (!found && j!=ptr->layout->qualifiers.end()); ++j)
- if(j->name==i->name)
- {
- j->has_value = i->value;
- j->value = i->value;
- found = true;
- }
-
- if(!found)
- ptr->layout->qualifiers.push_back(*i);
- }
- }
- else
- ptr->layout = var.layout;
- }
- nodes_to_remove.insert(&var);
- }
- else
- ptr = &var;
-}
-
-
-ConstantSpecializer::ConstantSpecializer():
- values(0)
-{ }
-
-void ConstantSpecializer::apply(Stage &stage, const map<string, int> *v)
-{
- values = v;
- stage.content.visit(*this);
-}
-
-void ConstantSpecializer::visit(VariableDeclaration &var)
-{
- bool specializable = false;
- if(var.layout)
- {
- vector<Layout::Qualifier> &qualifiers = var.layout->qualifiers;
- for(vector<Layout::Qualifier>::iterator i=qualifiers.begin(); i!=qualifiers.end(); ++i)
- if(i->name=="constant_id")
- {
- specializable = true;
- if(values)
- qualifiers.erase(i);
- else if(i->value==-1)
- i->value = hash32(var.name)&0x7FFFFFFF;
- break;
- }
-
- if(qualifiers.empty())
- var.layout = 0;
- }
-
- if(specializable && values)
- {
- map<string, int>::const_iterator i = values->find(var.name);
- if(i!=values->end())
- {
- RefPtr<Literal> literal = new Literal;
- if(var.type=="bool")
- literal->token = (i->second ? "true" : "false");
- else if(var.type=="int")
- literal->token = lexical_cast<string>(i->second);
- var.init_expression = literal;
- }
- }
-}
-
-
-void BlockHierarchyResolver::enter(Block &block)
-{
- block.parent = current_block;
-}
-
-
-VariableResolver::VariableResolver():
- stage(0),
- members(0),
- record_target(false),
- assignment_target(0),
- self_referencing(false)
-{ }
-
-void VariableResolver::apply(Stage &s)
-{
- stage = &s;
- s.types.clear();
- s.interface_blocks.clear();
- s.content.visit(*this);
-}
-
-void VariableResolver::enter(Block &block)
-{
- block.variables.clear();
-}
-
-void VariableResolver::visit(VariableReference &var)
-{
- var.declaration = 0;
- members = 0;
- for(Block *block=current_block; (!var.declaration && block); block=block->parent)
- {
- map<string, VariableDeclaration *>::iterator i = block->variables.find(var.name);
- if(i!=block->variables.end())
- var.declaration = i->second;
- }
-
- if(var.declaration)
- {
- if(var.declaration->type_declaration)
- members = &var.declaration->type_declaration->members.variables;
- }
- else
- {
- const map<string, InterfaceBlock *> &blocks = stage->interface_blocks;
- map<string, InterfaceBlock *>::const_iterator i = blocks.find(var.name);
- if(i!=blocks.end() && i->second->instance_name==var.name)
- {
- iface_ref = new InterfaceBlockReference;
- iface_ref->name = var.name;
- iface_ref->declaration = i->second;
- members = &i->second->members.variables;
- }
- else
- {
- for(i=blocks.begin(); (!var.declaration && i!=blocks.end()); ++i)
- if(i->second->instance_name.empty())
- {
- map<string, VariableDeclaration *>::iterator j = i->second->members.variables.find(var.name);
- if(j!=i->second->members.variables.end())
- var.declaration = j->second;
- }
- }
- }